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NO

YES

NO

NO

YES

NO

YES

YES

NO

NO

YES

YES

YES

NO

NO

NO

YES

Option

Option

MAX

max

Is water supply shut-off?

Is the tap opened?

When you press both Rinse button and Spin button
simultaneously, is the water level frequency below
242?

Is the inlet valve filter clogged with impurity?

Is resistance between each terminal of INLET
VALVE ASSEMBLY is 2~8

k

Ω

?

Check the voltage of the inlet valve connector 

220-240V~.

(Refer to 7-2 QC TEST MODE)

Is water supplied?

Are replaceptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?

Is detergent put in the correct compartment of
the drawer?

Is the detergent hardened?

Open the tap.

Check the AIR CHAMBER
and the tube clogged 
with impurity. 

Clean the filter.

Replace the INLET VALVE

ASSEMBLY.

Replace the MAIN PWB

ASSEMBLY

Refer to 

^NO WATER SUPPLY_

Check the wiring on the

dispenser.

Put the detergent in the

correct position 

: Detergent 

Clean the drawer.

YES

YES

NO

NO

NO

NO

YES

YES

YES

YES

Wiring diagram

Option

MAX

max

Fix the bolt tightly.

Replace the STATOR
ASSEMBLY or ROTOR
ASSEMBLY.

Refer to

^NO WATER SUPPLY_

Check the wiring on the 
dispenser.

Put it in the correct
compartment.

Clean the cap and
drawer.

Is the motor bolt loosened?

Is there friction noise from the motor?

Is water supplied?

Are receptacles correctly connected to the terminals
of the INLET VALVE ASSEMBLY?

Is softener put in the correct compartment of the

drawer?

Is the softener cap clogged?

NO

YES

YES

YES

YES

NO

NO

NO

NO

YES

YES

NO

MAIN PWB ASSEMBLY

MAIN PWB ASSEMBLY

220-240V

2 1

Replace the

S.PRESSURE SWITCH

ASSEMBLY

Replace the MAIN PWB
ASSEMBLY

Repair the DRAIN HOSE 
ASSEMBLY.

Remove foreign
material.

Reconnect or repair the
connector

Repair the DRAIN PUMP 
ASSEMBLY.

Repair the MAIN PWB 
ASSEMBLY.

When pressing Rinse Hold after draining, is  the
water level frequency 248 ~ 262 or more?  
When pressing Rinse Hold while wash, is the
water level frequency between 230 - 245?

Checking voltage between two pins as press
the POWER button is the voltage  220-240V~?

Is the drain hose twisted or frozen?

Is the impeller of the drain pump clogged?

Is the connector disconnected, disassembled?

Is the coil of the drain pump cut-off?

(resistance of coil is 80~150

Ω)

When checking voltage between connectors

(

, 

)on spinning, is the voltage 220-240V~ 

as the figure?

NO

YES

YES

WASH HEATER TROUBLE

When checking the voltage between
connectors ( ,

) during

whites washing, Is the voltage
220 - 240V ?

Replace the MAIN PWB
ASSEMBLY

YES

NO

After power off and the heater terminal is
disconnected, is the resistance 10~30 ?

Replace the
HEATER ASSEMBLY

NO

After power off,is the resistance of wire
(RED-YELLOW) connectors between
10 ~30 ?

Normal

NO

YES

RED

YELLOW

4

2

1

1

2

2

3

~

MAIN PWB ASSEMBLY

220-240V

MAIN PWB ASSEMBLY

(1)

4

2

Replace the THERMISTOR
(6322FR2046C)

Push the THERMISTOR
tightly to the rubber.

When disconnect the connector (1) on the  
MAIN PWB ASSEMBLY is the resistance of the 
natural connectors 

~ (White/Red),

(Blue/White)

₩between  

2.5k

Ω to 180kΩ

(105

℃

~0

℃

)?

When checking THERMISTOR on the tub is the

THERMISTOR loosened above 2mm from 

the rubber?